15040340205 has 48 divisors (see below), whose sum is σ = 27443416896. Its totient is φ = 6975189760.

The previous prime is 15040340191. The next prime is 15040340281. The reversal of 15040340205 is 50204304051.

It is not a de Polignac number, because 15040340205 - 2⁵ = 15040340173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1129 + ... + 173441.

It is an arithmetic number, because the mean of its divisors is an integer number (571737852).

Almost surely, 2^15040340205 is an apocalyptic number.

15040340205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15040340205 is a deficient number, since it is larger than the sum of its proper divisors (12403076691).

15040340205 is a wasteful number, since it uses less digits than its factorization.

15040340205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172378 (or 172355 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 15040340205 its reverse (50204304051), we get a palindrome (65244644256).

The spelling of 15040340205 in words is "fifteen billion, forty million, three hundred forty thousand, two hundred five".